CN201739077U - Slotting structure for core material of wind machine blade - Google Patents
Slotting structure for core material of wind machine blade Download PDFInfo
- Publication number
- CN201739077U CN201739077U CN2010202065402U CN201020206540U CN201739077U CN 201739077 U CN201739077 U CN 201739077U CN 2010202065402 U CN2010202065402 U CN 2010202065402U CN 201020206540 U CN201020206540 U CN 201020206540U CN 201739077 U CN201739077 U CN 201739077U
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- CN
- China
- Prior art keywords
- resin
- sandwich material
- core material
- wind machine
- core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a slotting structure for the core material of a wind machine blade, which is characterized in that both the front the back sides of the core material of the wind machine blade are slotted, and slot lines on the front side and the back side are symmetric. By virtue of the slotting structure, resin can uniformly flow as the core material is being poured, and the manufacturing cost can be saved.
Description
Technical field
The utility model relates to a kind of notching construction of new MW class pneumatic equipment blades made sandwich material, especially a kind of notching construction with double surface grooving.
Background technique
Sandwich material is one of critical material of pneumatic equipment blades made, for increasing structural rigidity, prevents local buckling, improves the anti-load-carrying ability of whole blade, at positions such as the leading edge of blade, trailing edges, generally all adopts sandwich structure.
In the existing blade shear web moulding, sandwich material (PVC foam) structure is one-side gaining.There is following problem in the core of one-side gaining in moulding:
1, in the resin filling process, core is in mould, and horizontal length and width are far longer than core thickness, in addition because the short texture of foam core material own, in have the hole can be for the resin circulation, thereby resin flow velocity in vertical direction will be much larger than substantially horizontal.The core notching construction provides passage for resin circulation in the horizontal direction, but because the nonsymmetry of one-side gaining, resin is balanced mutually at the Vertical direction and the substantially horizontal flow velocity of the face of fluting, the inequality but the unslotted face then flows, and it is bad to be easy to formation encirclement and local infiltration.
2, the position in hole is at the intersection point place of the line of rabbet joint, because in the groove lattice that the line of rabbet joint forms, to the center diffusion, it is bad that this kind diffusion way is easy to cause that resin soaks at groove lattice center by all around for resin; The face backflow of resin passage of in addition slotting is many than the unslotted face, and this lack of uniformity has more been aggravated the resin flows inequality, spreads irregularly, causes local infiltration bad.
3, in actual production, for guaranteeing the resin velocity of liquid assets, the core of one-side gaining needs completely to spread release cloth and water conservancy diversion net at upper surface; Be that the guiding resin soaks into, also need increase the number of bleeding point, so both expended also consumption of raw material in man-hour, increased the cost of actual production.
Summary of the invention
The purpose of this utility model provides a kind of new core notching construction, makes core can realize that when perfusion resin evenly flows, and saves cost of production.
The technical solution adopted in the utility model is: all slots at pneumatic equipment blades made sandwich material positive and negative, and the line of rabbet joint symmetry of positive and negative.
Further, the groove lattice center that forms at the line of rabbet joint is opened in the hole of sandwich material.
Preferably, sandwich material is the PVC foam.
This structure has following some difference than traditional one-side gaining structure:
1, the core positive and negative is notching construction
2, perforate becomes groove lattice center by line of rabbet joint intersection point
The beneficial effects of the utility model are:
1, the double surface grooving structure helps resin and evenly flows because the core external and internal compositions all is to be symmetrically distributed on entire die.Solved the mobile inequality that causes owing to the nonsymmetry of resin when the water conservancy diversion, sandwich material soaks into bad problem.
2, the position in hole becomes groove lattice center, and the diffusion of resin becomes by around the middle mind-set like this.Have fluting to be the resin water conservancy diversion around cooperating, such diffusion way is more balanced, the encirclement of groove lattice center can not occur or soak into bad phenomenon.
3, save cost
1. save material: the core of double surface grooving does not need completely to spread release cloth and water conservancy diversion net at upper surface, and lacks than the core of one-side gaining when arranging bleeding point and use several bleeding points; The injecting glue amount is the same with the core of one-side gaining.
2. save man-hour: save the time of shop water conservancy diversion net and release cloth, and double surface grooving resin flows speed is fast more a lot of than one-side gaining, saves infusion time.
Description of drawings
Fig. 1 a: the notching construction front schematic view of conventional art
Fig. 1 b: the notching construction reverse side schematic representation of conventional art
Fig. 2 a: the utility model notching construction front schematic view
Fig. 2 b: the utility model notching construction reverse side schematic representation
Wherein: 1: sandwich material 2: the line of rabbet joint 3: hole
Embodiment
As shown in Figure 1, in conventional art, sandwich material 1 (PVC foam) structure is one-side gaining, the position in hole 3 is at the intersection point place of the line of rabbet joint 2, because the nonsymmetry of one-side gaining, the front resin of fluting is balanced mutually at Vertical direction and substantially horizontal flow velocity, but the reverse side of unslotted resin flows inequality then, be easy to form surround and local infiltration bad; In addition, in the groove lattice that the line of rabbet joint 2 forms, to the center diffusion, it is bad that this kind diffusion way is easy to cause that resin soaks at groove lattice center by all around for resin; Increased the cost of actual production simultaneously.
Enforcement of the present utility model as shown in Figure 2, sandwich material 1 (PVC foam) is positive, reverse side all has the line of rabbet joint 2, and the line of rabbet joint 2 symmetries on two sides, the groove lattice center that forms at the line of rabbet joint 2 is opened in hole 3.So, make core can realize that when perfusion resin evenly flows, the encirclement of groove lattice center can not occur or soak into bad phenomenon, and save cost of production.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limit practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (3)
1. the notching construction of a pneumatic equipment blades made sandwich material, it is characterized in that: described pneumatic equipment blades made sandwich material positive and negative is all slotted, and the line of rabbet joint symmetry of positive and negative.
2. the notching construction of a kind of pneumatic equipment blades made sandwich material according to claim 1 is characterized in that: the groove lattice center that surrounds at the line of rabbet joint is opened in the hole of sandwich material.
3. the notching construction of a kind of pneumatic equipment blades made sandwich material according to claim 1 and 2 is characterized in that: sandwich material is the PVC foam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202065402U CN201739077U (en) | 2010-05-28 | 2010-05-28 | Slotting structure for core material of wind machine blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202065402U CN201739077U (en) | 2010-05-28 | 2010-05-28 | Slotting structure for core material of wind machine blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739077U true CN201739077U (en) | 2011-02-09 |
Family
ID=43554353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202065402U Expired - Lifetime CN201739077U (en) | 2010-05-28 | 2010-05-28 | Slotting structure for core material of wind machine blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421110A (en) * | 2013-08-28 | 2015-03-18 | 上海艾郎风电科技发展有限公司 | Wind turbine blade core and machining mode thereof |
| CN110242511A (en) * | 2019-05-08 | 2019-09-17 | 上纬新材料科技股份有限公司 | Wind turbine blade production plate, wind turbine blade spar cap structure and preparation method |
-
2010
- 2010-05-28 CN CN2010202065402U patent/CN201739077U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104421110A (en) * | 2013-08-28 | 2015-03-18 | 上海艾郎风电科技发展有限公司 | Wind turbine blade core and machining mode thereof |
| CN110242511A (en) * | 2019-05-08 | 2019-09-17 | 上纬新材料科技股份有限公司 | Wind turbine blade production plate, wind turbine blade spar cap structure and preparation method |
| CN110242511B (en) * | 2019-05-08 | 2021-04-30 | 上纬新材料科技股份有限公司 | Sheet material for manufacturing wind turbine blade, wind turbine blade beam cap structure and manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110209 |